Think of an open social network as similar to a public square. This is a place where everyone—member, non-member, affiliated, unaffiliated—can gather together. In contrast, a private social network—frequently called a “walled garden”—is only made available to authorized individuals. Both types serve beneficial purposes.
This paper focuses on such aspects of Facebook as:

Brave New Women
Church Health Survey Questionnaire
The New Role for Western Missionaries
MissionInsite Tools Assist Local Church During a Recent Disaster
Avoiding the Money Conflict
How Secure is Your Children's Ministry
Vehicle Maintenance Checklist
Church Safety 101 Checklist
Preparing for the Unthinkable: Violence in the Church
Safety 101: A Church Leader's Guide to Risk Management
Making Multisite Mergers Work: New Options for Being One Church in Two or More Locations
Leading Outside the Walls: How Externally Focused Churches Engage and Grow Ministry Leaders
Teacher First: Leadership Network's 2009 Survey of Large-Church Senior Pastors
The Changing Role of Large Church Senior Pastors: Trends and Developments
Multisite Movement Gaining New Momentum in New Places
Going Outside the Church Walls
Selecting Locations For Additional Campuses
Making Multisite Mergers Work: New Options for Being One Church in Two or More Locations
Planning for Big Success with Small Groups
Why Facebook and Other Social Networks May Not Work for Your Church